At Least 45 Ships and 22 Aircraft Involved in Efforts

A multinational effort to track down a missing Malaysian airliner on the edge of the South China Sea is turning into a rare example of maritime collaboration among countries embroiled in territorial disputes in the region.

At least 45 ships and 22 aircraft, including Southeast Asian military and law-enforcement forces as well as Chinese and U.S. warships, were involved, most of them converging on the last known location of Malaysia...